an epiphyte. Also called life plant. a tropical plant, Kalanchoe pinnata, of the stonecrop family, having pale green flowers tinged with red and new plants sprouting at the leaf notches. Historical Examples

Prince Leopold has succeeded in bringing to perfection that extraordinary exotic, the air plant. The Mirror of Literature, Amusement, and Instruction Various

It may begin life as an air plant, fixing its roots in the crotch of another tree, in which a chance seed has lodged. Trees Worth Knowing Julia Ellen Rogers

How should they guess that alongside her religious fervor a human love grew ethereally like an air plant? Duffels Edward Eggleston

noun an epiphyte, esp an orchid of the large Old World tropical genus Aerides, grown for its white scented flowers spotted with red, purple, or rose, or a bromeliad, esp of the genus Tillandsia air plant See epiphyte.

Aeronautics. the calculation of the ground position of an aircraft by first determining its air position from its speed in the air and heading information, and then correcting for wind effects. the room or rooms from which aircraft are directed aboard an aircraft carrier.

(not in technical use) a nearly vertical air current that can cause an aircraft to experience a sudden change in altitude, usually a decrease. Historical Examples No; if it had been compressible you would not have had that exhibition at the air pocket. The Wonder Island Boys: Exploring the Island Roger Thompson Finlay True enough; […]

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